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Research on the Influence of Debt Financing on Corporate Investment--Based on Political Relations Pe
[期刊论文] 作者:Liu Jinzhao,
来源:Review of Global Academics 年份:2014
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[期刊论文] 作者:Hong Sun,XiuRun Ge,FuJun Niu,Ge Liu,JinZhao Zhang,,
来源:Sciences in Cold and Arid Regions 年份:2014
One of the main construction problems in permafrost regions is protecting permafrost thermal stability. Although ventilating ducts and crushed-rock layers were successfully used in railway embankment...
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